MIT480 Series Telecommunications Insulation Tester - Features

• Test Voltages
  50 Volt, 100 Volt or 50 Volt to 1000 Volt insulation test voltages available depending on the instrument. The actual test voltage is displayed on the smaller digital readout, with the insulation result on the larger digital display.
• Analog Arc
  The display also features an analog 'ARC' to replace the response of a moving coil display.
• Insulation Leakage Current
  The MIT481 and MIT485 offer insulation leakage current display, in addition to insulation test voltage.
• Insulation Testing
  Up to 10GΩ or 200GΩ test range.
• Silicone Test Leads
  Silicone test leads are supplied with all the MIT480 series testers. They are essential to prevent error in measurement on insulation tests greater than 10GΩ.
• Test Inhibit
  Prevents testing if voltages in excess of 75 Volts are detected when making tests.
• Test Lock
  Allows the instrument test to be 'locked' on continuously.
• Timed Testing
  Both the MIT481 and MIT485 have timed insulation test options.

Continuity and Resistance

• 200mA or 20mA
  Either 200mA or 20mA continuity test currents are available. 20mA test current will considerably increase battery life.
• Auto Test
  Auto test on circuit contact enables real two handed operation without the need to press the test button.
• Lead Null
  Lead resistance compensation (NULL) operates up to 9.99Ω of resistance.
• Buzzer ON/OFF
  Selected by push button.
• Limit Alarm
  Continuity buzzer limit alarm provides adjustment of the maximum acceptable resistance. Resistance below the set limit sounds the buzzer. This is adjustable from 1Ω to 20Ω in five steps.
• Thousand Ohm Range
  The kΩ range extends resistance measurement from 10Ω to 1MΩ.

Capacitance Measurement

• Capacitance Measurement
  Auto ranges from 0.1nF to 10µF. Results are displayed on the primary digital display.
• Cable Length
  Cable length is displayed on the secondary display. Cable length is calculated from an adjustable cable capacitance reference (default 50nF/km).
• Cable Capacitance Reference
  A variable value for distance calculation is adjustable from 40nF/km to 60nF/km.
• km or Feet
  km or feet can be displayed, selected in set-up function.

Voltage and Frequency

• CAT IV
  Suitable for use on circuits up to 600V CAT IV.
• AC Voltage
  Measurement is True RMS up to 600 Volts.
• DC Voltage
  Measurement to 600 Volts.
• Fully Auto-Ranging
  Fully auto-ranging from 10mV up to 600V provides wide range of applications and suitable for transducer inputs.
• Default Voltmeter
  A default voltmeter is activated on any test function if circuit voltage is detected.

Storage and Downloading Results

• Model MIT481
  The MIT481 is capable of saving test results for recall to the screen. A simple storage structure allows for a test number and screen results to be recalled individually.
• Model MIT485
  The MIT485 supports both test result storage and downloading. Test results can be stored in the instrument and subsequently downloaded to a computer with the 'Megger Download Manager Software". Data transfer is by Bluetooth, with the MIT485 Bluetooth transmitter being enabled when the Download mode is selected on the instrument. Note the receiving PC needs to have Bluetooth capability or a USB port fitted Bluetooth receiver. Class II (10m) is acceptable.